Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem
Columbu, Andrea; Drysdale, Russell; Capron, Emilie ORCID: https://orcid.org/0000-0003-0784-1884; Woodhead, Jon; De Waele, Jo; Sanna, Laura; Hellstrom, John; Bajo, Petra. 2017 Early last glacial intra-interstadial climate variability recorded in a Sardinian speleothem. Quaternary Science Reviews, 169. 391-397. 10.1016/j.quascirev.2017.05.007
Before downloading, please read NORA policies.Preview |
Text
Copyright Elsevier Columbu - Early last glacial intra-interstadial climate variability AAM.pdf - Accepted Version Download (1MB) | Preview |
Abstract/Summary
Chemical and physical proxy data from a precisely dated early last glacial (∼113–110 ka, MIS5d) Sardinian stalagmite reveal a sub-millennial-scale, cool-dry climate event centered at 112.0 +0.52/-0.59 ka, followed by a rapid return to warm-wet conditions at 111.76 +0.43/-0.45 ka. Comparison with regional speleothem records and the palaeotemperature proxy record from the NGRIP ice core (Greenland) suggests that this event corresponds to Greenland Interstadial (GI) 25b and 25a, an intra-interstadial climate oscillation within GI-25, according to the recent Greenland stratigraphic framework. The speleothem age is in reasonable agreement (within 0.8 kyr) with that of the corresponding event in Greenland based on the GICC05modelext ice chronology but is older by about 3.7 kyr than the Greenland age based on the AICC2012 chronology.
Item Type: | Publication - Article |
---|---|
Digital Object Identifier (DOI): | 10.1016/j.quascirev.2017.05.007 |
Programmes: | BAS Programmes > BAS Programmes 2015 > Ice Dynamics and Palaeoclimate |
ISSN: | 0277-3791 |
Additional Keywords: | Speleotherms Greenland interstadials/stadials.ice-core chronology, U-Th dating |
Date made live: | 22 May 2017 13:04 +0 (UTC) |
URI: | https://nora.nerc.ac.uk/id/eprint/513630 |
Actions (login required)
View Item |
Document Downloads
Downloads for past 30 days
Downloads per month over past year